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A Trimble Standard Interface Protocol
56 Trimble ThunderBolt E GPS Disciplined Clock User Guide
Note – All angles are in radians. Reference numbers refer to Global Positioning System
Standard Positioning Service Signal Specification. This specification is currently available
in Adobe Acrobat format at www.navcen.uscg.gov/pubs/gps/sigspec/.
Report Packet 0x59: Status of Satellite Disable or Ignore Health
This packet is sent in response to command packet 0x39.
Report Packet 0x5A: Raw Data Measurement Data
Packet 0x5A provides raw GPS measurement data. This packet is sent in response to
packet 0x3A or automatically if enabled with packet 0x35.
75-82 sqrt(A) Double Table 2.5
83-86 toe Single Table 2.5
87-90 Cic Single Table 2.5
91-98 (OMEGA)0 Double Table 2.5
99-102 Cis Single Table 2.5
103-110 io Double Table 2.5
111-114 Crc Single Table 2.5
115-122 (OMEGA) Double Table 2.5
123-126 OMEGADOT Single Table 2.5
127-130 IDOT Single Table 2.5
131-138 Axis Double
139-146 n Double
147-154 r1me2 Double = sqrt(1.0-e2)
155-162 OMEGA_n Double Derived from OMEGA_0, OMEGADOT
163-170 ODOT_n Double Derived from OMEGADOT
Byte Item Type Value Meaning
0 Operation UINT8 3 The remaining bytes tell whether the
receiver has enabled each satellite for
selection.
6 The remaining bytes tell whether the
receiver heeds or ignores each satellite's
health as a criterion for selection.
1 to 32 Sat PRN UINT8 (1
per SV)
0 Enable satellite selection or heed satellite's
health.
1 Disable satellite selection or ignore
satellite's health.
Byte Item Type Units
0 SV PRN number UINT8
1-4 Sample length Single milliseconds
5-8 Signal level Single AMU or dB-Hz
Byte Item Type Meaning